US8778363B2ActiveUtilityA1

Oil-in-water emulsion skin care cosmetic composition

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Assignee: YAMAMOTO RIEPriority: May 25, 2009Filed: Dec 16, 2009Granted: Jul 15, 2014
Est. expiryMay 25, 2029(~2.9 yrs left)· nominal 20-yr term from priority
A61K 2800/592A61K 8/31A61K 8/922A61K 8/8111A61K 8/92A61K 8/06A61Q 19/08A61K 8/062A61K 8/81
52
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References
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Claims

Abstract

To provide an oil-in-water emulsion skin care cosmetic composition which, without the addition of a pharmaceutical agent and a film-forming agent or the like thereto, effects an excellent elastic or resilient feeling to skin and is excellent in non-stickiness and stability. An oil-in-water emulsion skin care cosmetic composition, comprising (a) a paraffin wax and/or a polyethylene wax, (b) a microcrystalline wax, and (c) an animal/plant-derived wax which contains, as the main ingredient thereof, an ester of a higher fatty acid having from 20 to 32 carbon atoms and an alcohol having from 28 to 34 carbon atoms, and has a melting point of from 75 to 100° C., in which the ratio of component (a) to component (b) is from 70/30 to 95/5 (by mass).

Claims

exact text as granted — not AI-modified
The invention claimed is: 
     
       1. An oil-in-water emulsion skin care cosmetic composition, comprising:
 (a) a paraffin wax and/or a polyethylene wax, 
 (b) a microcrystalline wax, and 
 (c) an animal/plant-derived wax which contains an ester of a fatty acid having from 20 to 32 carbon atoms and an alcohol having from 28 to 34 carbon atoms, and has a melting point of from 75 to 100° C., wherein the ratio of the component (a) to the component (b) is from 70/30 to 95/5 by mass and wherein the total amount of the component (a) and the component (b) is from 0.01 to 2% by mass, and the amount of the component (c) is from 0.005 to 2% by mass of the emulsion. 
 
     
     
       2. The oil-in-water emulsion skin care cosmetic composition as claimed in  claim 1 , wherein the component (c) is carnauba wax.

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